All vulnerabilities
CVE-2026-4894

Authentication bypass in multiple products from Frappe Technologies

Frappe Technologies Frappe Technologies
Open in ThreatlineRecord JSON
CVSS
6.9Medium
ExploitationNo known exploitationNot in CISA KEV, which does not prove it is unexploitedCISA KEV
Exploit odds (EPSS)0.38%Chance of exploitation activity in the next 30 days, higher than 30% of CVEs. Scored 23 Oct 2026FIRST EPSS
Fixed inNone listedNo source names a fixed version. Check the vendor advisory below
Published8 Oct 2026Updated 8 Oct 2026CVE List

What fixes it

No source in this snapshot names a fixed version. The vendor advisories under References are the place to check.

Description

A vulnerability has been identified regarding insufficient validation in the Frappe Cloud/ERPNext authentication process, which allows multiple email addresses to be accepted by manipulating the email field in the /api/method/press.api.account.signup endpoint. The vulnerability occurs when an unauthenticated remote attacker adds more than one email address. The service processes the entire value as a valid list of recipients and sends the OTP code to all addresses without proper validation of all added emails (only one of them needs to be valid). Exploiting this vulnerability would allow an attacker to:

  • Obtain the authentication OTP;
  • Impersonate someone else in the registration process;
  • Register accounts using other people's email addresses without access to the mailbox;
  • Indirectly confirm the existence of already registered email addresses.

Text from CVE List

Affected versions 1

  • Frappe Technologiesaffected: Version before 23/03/2026CVE List

References 1